To eliminate the divergence arising in the quark condensate under external magnetic fields,
one has introduced a dimensionless quantity of the subtracted quark condensate
in the lattice QCD [1]}, [2]}
and NJL model [with the quark anomalous magnetic moment (AMM) [3]}].
In this DSE's work, we use the similar subtracted quark condensate,
while with an additional parameter \(\kappa _{1}/eB\) , as
\(\frac{\left(\Sigma _{u}+\Sigma _{d}\right)}{2} &=& 1-\frac{\kappa _{1}}{eB}\frac{m_{L}}{m_{\pi }^{2}f_{\pi }^{2}} \left\lbrace \left[\langle \bar{u}u\rangle _{eB}-\langle \bar{u}u\rangle _{eB=0}\right]+\left[\langle \bar{d}d\rangle _{eB}-\langle \bar{d}d\rangle _{eB=0}\right]\right\rbrace .\) 
